Cause of problem issue as far as I know in my experience. The NVRAM file firmware needs to flash to phone to prevent this problem. Write a 15 digit IMEI number same as your phone using IMEI tool. If the problem is "Invalid IMEI" but has a good Baseband in About menu of the device.ġ. If a problem still, Its a module Baseband Hardware problem. Use the Paid tools or Free tool to Fix it, Unknown baseband buttonģ. Restore factory setting on the menu of the phoneĢ. Unknown baseband most phone in about menu most of the android phoneĪfter writing a Good NVRAM database to the device If this is still "U nknown Baseband", Try the following I made in my experience.ġ. Invalid sim but showing the name of SIM network name Some problem if your phone show issue on-screen display if no IMEI or Invalid If not shown IMEI 15 digit after you type on the dialer, You see on Mobile screen is Invalid IMEI or no IMEI showed, The result is the reading signal of your phone in subscriber is disconnected only emergency call only is only allowed. Or you can see it by type a key on all devices *#06# on call dialer of your phone. IMEI is a 15 digit code that always found indicate on back housing of mobile phone below the name model. The NVRAM item is the small part of the firmware of devices are called modem file.Ī modem file is a software file to support the hardware baseband module to reading SIM carrier to connect and give a signal to a phone by an identity of every phone via a serial number or we called it IMEI. – Incase of driver installation failure, uninstall libusb and UsbK drivers.WHAT IS NVRAM DATABASE in MOBILE PHONE FIRMWARE – Please use intall driver if you face driver issue. – You need to use new driver for this version. – This method is more faster than previous one. – These are tested ones, many others already supported. – Simply tick required options and execute. Calculate Unlock Code for supported Models.Works with network calibrations (backup and restore).Works with FFS through boot mode (allows to export information from the phone’s FFS zone even if the handset is dead, but file system of the phone is not damaged).Repair Alcatel Security Area via flashing.Repair Software IMEI (phones with IMEI located in the file system).Repair IMEI, including models with more than one SIM.Flash & Restore firmware (restore backup from one phone into another).
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